Crossword

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Across
  1. 2. Liquid to Solid
  2. 4. Gas to Liquid
  3. 6. Hottest State
  4. 9. Solid to Gas
Down
  1. 1. Close to absolute zero
  2. 3. Liquid to gas
  3. 5. Ice CO2 Ice
  4. 7. Solid to Liquid
  5. 8. Liquid to Gas with heat
  6. 10. Fundamental Particle